Sender ID registration in Brazil
What Anatel and the operators in Brazil require for SMS sender IDs, how long approval takes, the accepted formats and sending rules, and how OmniChannels.ai registers yours.
- Registration
- Set by the operators
- Typical lead time
- 5–10 business days
- Alphanumeric sender ID
- On some networks
- Regulator
- Anatel
Short answer
In Brazil, sender ID requirements are set by the mobile operators (Vivo and Claro Brasil), with Anatel as regulator. Approval typically takes 5–10 business days. Alphanumeric IDs work only on some networks. OmniChannels.ai handles the filing across 3 operators and confirms current rules during onboarding.
Sender ID rules in Brazil at a glance
| Regulator | Agência Nacional de Telecomunicações (Anatel) |
|---|---|
| Registration required | Set by the operatorsBroadNet confirms the current requirements during onboarding |
| Typical lead time | 5–10 business days |
| Alphanumeric sender ID | On some networks |
| Numeric long code / short code | Supported alongside alphanumeric sender IDs |
| Accepted formats | Alphanumeric (where supported) or numeric long-code / short-code |
| Promotional sending hours | No regulator-published window foundAgree sending hours with the operator and schedule promotional sends for the recipient's local daytime; transactional traffic runs 24/7. |
| Opt-in | Verifiable opt-in required, with consent records retained per the local data-protection law. |
| Opt-out | STOP / SAIR keyword honoured network-wide. Opt-out is one-step and applied across the operator. |
| Operators we reach | Vivo, Claro Brasil and TIM Brasil |
| Last reviewed | 29 September 2026Sources: ANATEL, ANPD |
How to register your sender ID in Brazil through OmniChannels.ai
Sender ID registration fees are passed through at cost. We confirm the documents and the current rules for your traffic during onboarding.
Need the authorization letter?
Generate a ready-to-sign LOA or NOC for this country in English, Arabic or both. Free, and your details never leave your browser.
Generate your authorization letter- 1
Choose and check your sender ID
Pick a sender ID that matches your brand: Latin letters, up to 11 characters. Test it in the free sender ID checker first.
- 2
Send us your company details and use case
Tell us the legal entity, brand and what each sender ID will send (OTP, transactional or promotional). We confirm which supporting documents are currently needed.
- 3
We file with the operators
We prepare and submit the application. Current process in Brazil: BroadNet confirms the current requirements during onboarding.
- 4
Approval and test messages
Approval typically takes 5–10 business days. Once approved we send test messages on Vivo, Claro Brasil and TIM Brasil and check the sender ID displays correctly.
- 5
Go live
Send through the REST API, SMPP or campaigns. Schedule promotional sends for the recipient's local daytime. Opt-out handling is applied to every promotional message.
Common reasons a sender ID is rejected in Brazil
- Too long: sender IDs here are up to 11 characters.
- Generic words instead of a brand, such as INFO, SMS, OTP, ALERT: regulators usually refuse them.
- Arabic, accented or other non-Latin letters: this market lists Latin letters only.
- Spaces or symbols such as _ & ! ( ): many operators strip or refuse them; use a hyphen or nothing.
- Expecting the alphanumeric ID on every network: some networks replace it with a numeric sender.
Run your proposed sender ID through the free sender ID checker, preselected for Brazil, before you apply.
Register your sender ID in Brazil
Send us your brand and use case. We file the sender ID for 3 operators, run the test messages and connect it to the same API, SMPP and campaign tools you use for every other market.
Sender ID in Brazil: questions
Do I need to register a sender ID in Brazil?
Yes, in practice: the mobile operators in Brazil set the sender ID requirements rather than a central registry. BroadNet confirms the current requirements during onboarding.
How long does sender ID registration take in Brazil?
Typically 5–10 business days, depending on the operator and the documents provided. We confirm the current timeline for your sender ID during onboarding.
Can I use an alphanumeric sender ID in Brazil?
Partly. Alphanumeric sender IDs work on some networks in Brazil; elsewhere a numeric long code or short code is used. Accepted formats: Alphanumeric (where supported) or numeric long-code / short-code.
When can I send promotional SMS in Brazil?
There is no regulator-published window that we know of in Brazil. Agree sending hours with the operator and schedule promotional sends for the recipient's local daytime; transactional traffic runs 24/7.
What consent and opt-out rules apply in Brazil?
Verifiable opt-in required, with consent records retained per the local data-protection law. STOP / SAIR keyword honoured network-wide. Opt-out is one-step and applied across the operator.
Who regulates SMS sender IDs in Brazil?
Agência Nacional de Telecomunicações (Anatel), together with the mobile operators (Vivo, Claro Brasil and TIM Brasil). Official sources: ANATEL, ANPD.
Can I send from a numeric number or short code in Brazil?
Yes. Supported alongside alphanumeric sender IDs. Alphanumeric (where supported) or numeric long-code / short-code.
Related for Brazil
Sender ID registration in nearby markets
- Argentina · 7–14 business days
- Bolivia · 10–14 business days
- Chile · 5–10 business days
- Colombia · 5–10 business days
- Ecuador · 7–14 business days
- Mexico · 5–10 business days
- Peru · 5–10 business days
- Uruguay · 5–10 business days
- All countries
Data: BroadNet regulatory research, reviewed 29 September 2026. URL: https://omnichannels.ai/sender-id/brazil/